The laptop seems to work at first sight. But if you look closer you will notice small but annoying difference between display sharpness on win7 and ubuntu (10.4, 11.04, 11.10). Display is flickering on ubuntu, especially on dark background with backlight at 40-80% (i checked on Knopix 6.7.3, Fedora 15 too). On Win7 you can sees pecific grid on screen, on linux distros.. it looks like old 50hz CRT monitor